Sudo

Biodata

Feature	Information
Name	Sudo Ken (须藤)
Gender	Male
Affiliation	Class D, Advanced Nurturing High School
Occupation/Role	First-year student; Class D's athletic specialist
First Appearance	Chapter 1

Background / History

Sudo meets Yuto Hayashi on the bus to Advanced Nurturing High School, introducing himself enthusiastically and declaring that they should look after one another. Yuto recognizes him as Class D's athletic specialist: impulsive and hot-tempered, but dependable in important moments. 1

Upon learning that students receive 100,000 points monthly, Sudo becomes excited and immediately organizes a convenience-store trip with Ike Kanji and Yamauchi Haruki. He spends freely on snacks, drinks, headphones, and other nonessentials, believing the monthly allowance will continue unchanged. 2 3

After Class D learns that class points determine future personal-point income, Sudo becomes notably more restrained. He cuts back on vending-machine purchases, begins carrying and refilling a water bottle, and sometimes avoids spending any points on drinks. 15 16

Appearance

Sudo is a darker-skinned, strongly built student who stands roughly half a head taller than many of his peers. 1

• Loud voice and animated hand gestures when speaking. 1
• Typically occupies the back of the classroom with Ike and Yamauchi. 1 3
• Often carries a basketball after school. 5

Personality

Sudo is carefree, boisterous, and eager to have fun in high school. He readily approaches classmates and invites them to shop, play basketball, or join group activities. 1 2 5

He is also impulsive and easily frustrated. When he cannot solve academic problems, he tends to reject help, lash out at those nearby, and leave rather than remain composed. 20 21 Despite this temper, he can recognize when support is useful; he accepts Horikita's past exam papers and begins reviewing them even after previously clashing with her. 23

Abilities & Skills

Athletics and Basketball

Sudo is identified as Class D's athletic specialist and shows a consistent interest in basketball. 1

• Invites Yuto to play basketball after school. 5
• His interest in basketball is strong enough that Horikita describes him as someone who thinks about it constantly. 8

Academic Performance

Sudo struggles particularly with mathematics and sustained study, though he makes intermittent efforts to improve before the midterms. 17 20

• Has difficulty memorizing English vocabulary, repeatedly restarting from the same word. 17
• Spends long periods unsuccessfully attempting quadratic-function problems. 20
• Rejects Horikita's assistance during study sessions and lashes out over his frustration. 20
• Leaves many midterm mathematics questions unanswered, including the final two major questions. 24

Relationships

• Yuto Hayashi — Met Yuto on the first-day bus ride and repeatedly invites him to socialize or play basketball. Yuto later openly criticizes Sudo's conduct during the study group, prompting Sudo to storm out. 1 2 5 21
• Horikita Suzune — Horikita sees Sudo as energetic but academically incapable and tries to help him in the study group. Sudo reacts angrily to her assistance, but later accepts the past exam papers she shares. 8 20 23
• Ike Kanji and Yamauchi Haruki — His closest early classmates; the three spend points recklessly together, attend the study group together, and leave after Yuto confronts them. 2 3 21
• Kushida Kikyo — Kushida helps calm Sudo after the class-point revelation and later voices frustration over his behavior during the study group. 15 16 19 21
• Hirata Yosuke — Hirata attempts to de-escalate Sudo's outburst during the study group and later provides him with an extra copy of the past exam paper. 20 23

Story Role / Major Arcs

Point-Spending Adjustment

Sudo is among the first Class D students to squander his initial points, helping illustrate the class's lack of discipline. After the point-system information is confirmed, he becomes more cautious with money and reduces his spending. 2 3 15 16

Study Group Conflict

Sudo attends Horikita's study group but becomes increasingly impatient with its academic demands. Unable to solve a quadratic-function problem, he kicks a desk, insults Horikita and Hirata, and walks out, contributing to the group's collapse. 20

When Horikita later asks Yuto to help the same students, Yuto directly recounts Sudo's behavior. Sudo cannot refute the criticism and responds by overturning furniture before leaving with Ike and Yamauchi. 21

Midterm Preparation

Although initially reluctant to accept help from Horikita, Sudo takes a copy of last year's midterm paper and begins reading it at his desk. 23 He nevertheless performs poorly in the mathematics midterm, leaving much of the paper blank. 24

Notable Quotes

“Damn it! Who the hell came up with this garbage problem? What's the point of learning it?” 20

“Fine, I won't study! It's not like I give a damn anyway!” 21

Trivia

• Yuto identifies an upcoming “Sudo incident” involving a fight and a Class D student being framed as an early key event, but it has not occurred in the provided chapters. 1 2
• Sudo's initial excitement over 100,000 monthly points includes calculating that he could receive 3.6 million points over three years. 2